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Ivenika [448]
3 years ago
14

PLEASEEEE HELPPP!!!!

Mathematics
1 answer:
CaHeK987 [17]3 years ago
5 0

Answer:

The slope of this line is 1/2.

Step-by-step explanation:

You have to pick any two coordinates from the line. So I will pick (2,0) and (4,1). Then you have to use gradient formula :

m =  \frac{y2 - y1}{x2 - x1}

Let (x1,y1) be (2,0),

Let (x2,y2) be (4,1),

m =  \frac{1 - 0}{4 - 2}

m =  \frac{1}{2}

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The final exam of a particular class makes up 40% of the final grade, and Moe is failing the class with an average (arithmetic m
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Answer:

%82.5

Step-by-step explanation:

  1. The final exam of a particular class makes up 40% of the final grade
  2. Moe is failing the class with an average (arithmetic mean) of 45% just before taking the final exam.

From point 1 we know that Moe´s grade just before taking the final exam represents 60% of the final grade. Then, using the information in the point 2 we can compute Moe´s final grade as follows:

FG=0.40*FE+0.60*0.45,

where FG is Moe´s Final Grade and FE is Moe´s final exam grade. Then,

\frac{ FG-0.60*0.45}{0.40}=FE.

So, in order to receive the passing grade average of 60% for the class Moe needs to obtain in his exam:

FE=\frac{ 0.60-0.60*0.45}{0.40}=0.825

That is, he need al least %82.5 to obtain a passing grade.

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The second sentence expresses a relationship between the two unknowns, so we'll use it to write our first mathematical expressio
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To get 2 times, we multiply by 2. To get 12 more, we add 12.

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